CN109854648A - A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm - Google Patents
A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm Download PDFInfo
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- CN109854648A CN109854648A CN201910057452.6A CN201910057452A CN109854648A CN 109854648 A CN109854648 A CN 109854648A CN 201910057452 A CN201910057452 A CN 201910057452A CN 109854648 A CN109854648 A CN 109854648A
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- worm screw
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- magnet ring
- inductor
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Abstract
The invention discloses the adjustment arms that a kind of monitoring worm screw rotational angle realizes brake pad wear alarm, including a shell, control arm, inductor, cover board, worm screw, magnet ring, worm gear etc., when the worm is rotated, the magnet ring being fixed thereon also rotates together, when magnet ring rotation, the magnetic field acted on inductor can change, the voltage of inductor output also just changes, the perception for passing through the variation to voltage with the above-mentioned ECU contacted, calculate the angle beta of worm screw rotation, the angle of so β/22 is exactly the angle that worm gear turns over, the namely angle that turns over of camshaft, the ECU of present invention processing analysis and regulation arm worm screw rotational angle, pass through the analysis to voltage change, it calculates the angle that worm screw turns over and carries out cumulative calculation, and pass through the rotation relationship of 1:22, calculate the angle that worm gear and camshaft turn over Degree, then the abrasion loss of brake lining is obtained indirectly, carry out instruction and alarm to abrasion condition.
Description
Technical field
The present invention relates to automobile brake technical field, specially a kind of automatic adjusting arm of S cam drum type brake,
It is provided with an angular transducer, worm screw rotational angle is monitored, the angle rotated by worm screw is convex come single indirect monitoring
The angle of wheel shaft rotation, to realize the function of brake pad wear instruction and limiting alarm
Background technique
With the rapid development of society, the economic level of people also in the continuous improvement, build in national economy by Automobile Transportation
Occupy considerable proportion in if.The active safety of automobile is increasingly higher by producer, buyer, user, traffic control department
Degree is paid attention to.
Brake lining is one of indispensable important spare part in automobile brake system, and brake lining is in use
It wearing gradually, when may wear to the limit, the brake lining more renewed when pole, otherwise, brake pad wear is excessive, can expose
Following metal objects, such as back-plate, rivet, these metal objects cannot not only undertake braking operation, can also damage braking
Disk or brake drum seriously jeopardize the traffic safety of automobile.
Due to different operating conditions, different braking liner, different severities of braking, the abrasion condition thousand poor ten thousand of brake lining
Not, the replacement gap periods of predetermined brake liner cannot be carried out with distance travelled, runing time.For the abrasion condition of friction facing
For more with the naked eye observe and judge by rule of thumb by driver personnel, therefore it is very inaccurate, in addition often
Secondary driver requires to come out to out of driver's cabin by wheel carry out from also cause it is very inconvenient.
Brake lining cannot be replaced people to bring safety accident of driving a vehicle in time in order to prevent, and people devise a variety of
Warning device is alarmed, and brake lining is replaced when reminding driver and conductor pole, and to eliminate, safety is steady to be suffered from.
Traditional mode is to rub formula warning device: the circuit of the device is in normal closure state, when brake lining arrives
The conducting wire being embedded in brake lining when the limit of wear, in circuit is rubbed, and circuit disconnects, and at this moment alarm issues information and carries out
Alarm.
Recently, occurs a kind of a kind of " angle biography for adjusting arm for being exclusively used in brake pad wear detection on the market
Sensor ", this is a good product.But it has a disadvantage that be exactly that whatsoever reason, these reasons are frequently not braking
The reason of gasket wear or replacement, must be readjusted, this is not quasi- enough as long as it is removed from camshaft again to zero-bit
True.
In 201821696846.3 1 text of Patent No., the adjustment arm of a monitoring worm gear rotational angle is described, this
A product for having very much innovation, it can also reach to brake pad wear be monitored with alarm function, but due to it
Transmission ratio is 61:12, and monitoring resolution ratio is not very high, error bad control when alarm.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, novel product of the invention provides one kind and sets
A kind of adjustment arm of reasonable, structure novel the monitoring worm screw rotational angle realization brake pad wear alarm of meter, including a shell
Body, control arm, inductor, cover board, worm screw, magnet ring, worm gear etc., when the worm is rotated, the magnet ring being fixed thereon also turn together
Dynamic, when magnet ring rotation, the magnetic field acted on inductor can change, and the voltage of inductor output also just changes,
With the above-mentioned ECU contacted by the perception of the variation to voltage, the angle beta of worm screw rotation is calculated, then the angle of β/22 is exactly
The angle that worm gear turns over, that is, the angle that camshaft turns over, the present invention handle the ECU of analysis and regulation arm worm screw rotational angle,
By the analysis to voltage change, calculates the angle that worm screw turns over and carry out cumulative calculation, and pass through the rotation relationship of 1:22, meter
Calculate the angle that worm gear and camshaft turn over, then obtain the abrasion loss of brake lining indirectly, carry out instruction to abrasion condition with
Alarm.
In order to achieve the above objectives, the technical scheme is that a kind of monitoring worm screw rotational angle realizes brake lining mill
The main components such as the adjustment arm, including shell, control arm, inductor, cover board, worm screw, magnet ring, a worm gear of alarm are damaged,
Be characterized in that: when the worm is rotated, the magnet ring being fixed thereon also rotates together, and when magnet ring rotation, acts on inductor
Magnetic field can change, the voltage of such inductor output also just changes, and passes through with the above-mentioned ECU contacted to voltage
The perception of variation calculates the angle beta of worm screw rotation, then the angle of β/22 is exactly the angle that worm gear turns over, that is, camshaft
The angle turned over.
Further setting, a kind of monitoring worm screw rotational angle realize the adjustment arm of brake pad wear alarm, are by right
The angle calculation of worm screw rotation, calculates the angle that worm gear and camshaft turn over indirectly, has on the fixed worm screw of a magnet ring, with snail
Bar rotates together, and inductor and is fixed on shell in the radial positive direction of magnet ring, and the two constitutes an angular transducer.
Further setting, a kind of monitoring worm screw rotational angle realize the adjustment arm of brake pad wear alarm, and output is
Voltage value, output voltage are variations, in 1V to alternately variation between 5V.
The beneficial effects of the present invention are: the present invention handles the ECU of analysis and regulation arm worm screw rotational angle, by becoming to voltage
The analysis of change calculates the angle that worm screw turns over and carries out cumulative calculation, and passes through the rotation relationship of 1:22, calculates worm gear and convex
The angle that wheel shaft turns over, then the abrasion loss of brake lining is obtained indirectly, carry out instruction and alarm to abrasion condition.
Detailed description of the invention
Fig. 1 is present invention adjustment arm shape assumption diagram；
Fig. 2 is that present invention adjustment arm adjusts arm schematic diagram of internal structure；
Fig. 3 is Worm Wheel System schematic diagram.
In figure: shell 1 is the basis for adjusting arm assembly, and cover board 7, inductor 6, control arm 4, worm gear (5), worm screw 3 are all pacified
On shell 1, magnet ring 2 is fixed together with worm screw 3, is unable to move relatively.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in FIG. 1 to 3, a kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm, a kind of
Monitor the adjustment arm that worm screw rotational angle realizes brake pad wear alarm, including a shell 1, control arm 4, inductor 6, lid
The main components such as plate 7, worm screw 3, magnet ring 2, worm gear 5, when worm screw 3 rotates, the magnet ring 2 being fixed thereon also is rotated together,
When magnet ring 2 rotates, the magnetic field acted on inductor 6 can change, and the voltage of such inductor output is also with regard to becoming
Change, with the above-mentioned ECU contacted by the perception of the variation to voltage, the angle beta of the rotation of worm screw 3 is calculated, then the angle of β/22
It is exactly the angle that worm gear 5 turns over, that is, the angle that camshaft turns over, the present invention handles analysis and regulation arm worm screw rotational angle
ECU calculate the angle that worm screw turns over and carry out cumulative calculation, and the rotation for passing through 1:22 by the analysis to voltage change
Relationship calculates the angle that worm gear and camshaft turn over, then obtains the abrasion loss of brake lining indirectly, carries out to abrasion condition
Instruction and alarm.
A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm, is by rotating to worm screw 3
Angle calculation calculates the angle that worm gear 5 and camshaft turn over indirectly, has on the fixed worm screw 3 of a magnet ring 2, together with worm screw 3
Rotation, inductor 6 and are fixed on shell 1 in the radial positive direction of magnet ring, and the two constitutes an angular transducer.
A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm, and output is voltage value, output
Voltage is variation, in 1V to alternately variation between 5V.
In Patent No. 201821696846.3, the adjustment arm of a monitoring worm gear rotational angle is described, this is a
Have very much a product of innovation, the present invention it is different be that the abrasion to brake lining is realized by the angle of monitoring worm screw rotation
It is monitored, to realize high-precision instruction and the limiting alarm of abrasion condition.
Main components of the invention have shell 1, cover board 7, worm screw 3, worm gear 5, are cased with a magnet ring on worm screw (3)
(2), the connection line of an inductor 6, inductor 6 picks out by the hole on shell 1 in 1 front of shell corresponding with magnet ring
Afterwards, it is connected with the ECU of vehicle, when the automobile in traveling needs to slow down or stop, brake lining can be because work, be braked
Drum abrasion, can be slowly just thin, and brake clearance will become larger, and at this moment automatic adjusting arm will participate in work, be rotated by control arm 4
Worm screw 3 rotates worm gear 5, changes the initial position of camshaft, achieve the purpose that backlash compensation.When brake lining is worn down to pole
In limited time, the ECU connected on the car body will issue alarm, the brake lining for reminding driver more to renew.
The transmission ratio of worm and wheel is 1 ﹕ 22 in the technical program, just says that worm gear 5 is just when 22 circle of worm screw (3) rotation
1 circle of rotation, camshaft connects together with worm gear 5, at the transmission of 1:1；When the angle that cam axle angle [alpha], worm screw 3 rotate
For 22 α.
The magnetic pole of magnet ring 2 radially move towards by the pole NS, and magnet ring 2 is rotated together with worm screw (3), in this way, it acts on inductor 6
Magnetic field strength and direction will also change, be fixed on the inductor 6 on shell 1 by the perception to this variation, it is right
Defeated voltage also just changes, and every 360 degree of the rotation of magnet ring 2, the voltage change of inductor is alternately present in 1V between 5V.
The ECU of processing 2 rotational angle of analysis and regulation arm worm screw is calculated worm screw 2 and is turned over by the analysis to voltage change
Angle, cumulative calculation is carried out to the angle of rotation, and pass through the rotation relationship of 1:22, calculates worm gear 5 and camshaft turns over
Angle, then obtain the abrasion loss of brake lining indirectly, carry out instruction and alarm to abrasion condition.
When automobilism, it can occur to slow down often or the demand of parking, this function are required to brake to complete,
During completing this function, brake lining can slowly be worn thinning, and the gap between brake lining and brake drum can be slowly
Become larger.At this moment automatic adjusting arm will participate in adjustment work, change the initial position of camshaft, thus realize the compensation in gap,
To reach clearance constant purpose.
It is that worm screw (3) rotation is driven by control arm 4, worm screw 3 drives during automatic adjusting arm carries out gap benefit
Worm gear 5 rotates to realize.
When worm screw 3 rotates, the magnet ring 2 being fixed thereon also is rotated together, and when magnet ring 2 rotates, acts on inductor 6
On magnetic field can change, the voltage of such inductor output also just changes.Change of the ECU associated to its voltage
Change, calculate the angle beta of the rotation of worm screw 3, then the angle of β/22 is exactly the angle that worm gear 5 turns over, that is, camshaft turns over
Angle.
When β/22 < alarm permission angle, ECU exports the actual wear amount of brake lining；When β/22≤alarm permission angle
When spending, ECU exports alarm signal, moves liner while reminding driver's replacement.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of the present invention.
Claims (3)
1. a kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm, including shell (1), a control arm
(4), the main components such as inductor (6), cover board (7), worm screw (3), magnet ring (2), worm gear (5), it is characterised in that: work as worm screw
(3) when rotating, the magnet ring (2) being fixed thereon also is rotated together, and when magnet ring (2) rotation, acts on the magnetic on inductor (6)
Field can change, and the voltage of such inductor output also just changes, and passes through the variation to voltage with the above-mentioned ECU contacted
Perception, calculate worm screw (3) rotation angle beta, then the angle of β/22 is exactly the angle that worm gear (5) turns over, that is, cam
The angle that axis turns over.
2. a kind of monitoring worm screw rotational angle according to claim 1 realizes the adjustment arm of brake pad wear alarm, it is
By the angle calculation rotated to worm screw (3), the angle that worm gear (5) and camshaft turn over is calculated indirectly, it is characterised in that: have
On one magnet ring (2) fixed worm screw (3), rotated together with worm screw (3), inductor (6) magnet ring radial positive direction, and it is solid
It is scheduled on shell (1), the two constitutes an angular transducer.
3. a kind of monitoring worm screw rotational angle according to claim 1 realizes the adjustment arm of brake pad wear alarm,
Output is voltage value, it is characterised in that: output voltage is variation, in 1V to alternately variation between 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057452.6A CN109854648A (en) | 2019-01-22 | 2019-01-22 | A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057452.6A CN109854648A (en) | 2019-01-22 | 2019-01-22 | A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm |
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| Publication Number | Publication Date |
|---|---|
| CN109854648A true CN109854648A (en) | 2019-06-07 |
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ID=66895451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910057452.6A Pending CN109854648A (en) | 2019-01-22 | 2019-01-22 | A kind of monitoring worm screw rotational angle realizes the adjustment arm of brake pad wear alarm |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976308A (en) * | 2019-11-28 | 2020-04-10 | 盐城服务业集聚区投资有限公司 | Screening machine for logistics conveying |
| CN113847368A (en) * | 2021-09-17 | 2021-12-28 | 中国重汽集团济南动力有限公司 | Intelligent monitoring device and method for heavy truck disc brake |
| CN114278690A (en) * | 2021-12-28 | 2022-04-05 | 瀚德万安(上海)电控制动***有限公司 | Brake wear monitoring device, method, computer equipment and storage medium |
| CN114483837A (en) * | 2022-04-13 | 2022-05-13 | 宁波合力制动***有限公司 | Double-bent-arm type brake clearance adjusting arm |
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| CN2685644Y (en) * | 2004-03-12 | 2005-03-16 | 重庆屯茂机械有限公司 | Vehicle cam air braking brake gap automatic regulating arm |
| CN2787525Y (en) * | 2005-04-12 | 2006-06-14 | 宁波市三浪润滑元件有限公司 | Alarming unit of automatic clearance-adjustment arm for automobile brake |
| CN107975554A (en) * | 2017-10-23 | 2018-05-01 | 山东泰丰制动***科技股份有限公司 | The method for adjusting brake clearance between shoe brake and brake drum |
| CN109139751A (en) * | 2018-10-20 | 2019-01-04 | 绍兴驰达汽车配件制造有限公司 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
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2019
- 2019-01-22 CN CN201910057452.6A patent/CN109854648A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685644Y (en) * | 2004-03-12 | 2005-03-16 | 重庆屯茂机械有限公司 | Vehicle cam air braking brake gap automatic regulating arm |
| CN2787525Y (en) * | 2005-04-12 | 2006-06-14 | 宁波市三浪润滑元件有限公司 | Alarming unit of automatic clearance-adjustment arm for automobile brake |
| CN107975554A (en) * | 2017-10-23 | 2018-05-01 | 山东泰丰制动***科技股份有限公司 | The method for adjusting brake clearance between shoe brake and brake drum |
| CN109139751A (en) * | 2018-10-20 | 2019-01-04 | 绍兴驰达汽车配件制造有限公司 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976308A (en) * | 2019-11-28 | 2020-04-10 | 盐城服务业集聚区投资有限公司 | Screening machine for logistics conveying |
| CN113847368A (en) * | 2021-09-17 | 2021-12-28 | 中国重汽集团济南动力有限公司 | Intelligent monitoring device and method for heavy truck disc brake |
| CN114278690A (en) * | 2021-12-28 | 2022-04-05 | 瀚德万安(上海)电控制动***有限公司 | Brake wear monitoring device, method, computer equipment and storage medium |
| CN114278690B (en) * | 2021-12-28 | 2024-03-15 | 瀚德万安(上海)电控制动***有限公司 | Brake wear monitoring device, method, computer equipment and storage medium |
| CN114483837A (en) * | 2022-04-13 | 2022-05-13 | 宁波合力制动***有限公司 | Double-bent-arm type brake clearance adjusting arm |
| CN114483837B (en) * | 2022-04-13 | 2022-07-12 | 宁波合力制动***有限公司 | Double-bent-arm type brake clearance adjusting arm |
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